Engine Overheating
If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information.
The vehicle has several indicators to warn of engine overheating.
There is a coolant temperature gauge on the vehicle's instrument panel. See Engine Coolant Temperature Gauge on page 5‑17.
In addition, there are ENGINE OVERHEATED STOP ENGINE, ENGINE OVERHEATED IDLE ENGINE, and ENGINE POWER IS REDUCED messages in the Driver Information Center (DIC) on the instrument panel. See Engine Cooling System Messages on page 5‑44 and Engine Power Messages on page 5‑46.
If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Assistance Program (U.S.
and Canada) on page 13‑8 or Roadside Assistance Program (Mexico) on page 13‑10.
If the decision is made to lift the hood, make sure the vehicle is parked on a level surface.
Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine and have the vehicle serviced.
Notice: Engine damage from running your engine without coolant is not covered by the vehicle warranty. See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency.
Notice: If the engine catches fire while driving with no coolant, the vehicle can be badly damaged.
The costly repairs would not be covered by the vehicle warranty.
See Overheated Engine Protection Operating Mode on page 10‑26 for information on driving to a safe place in an emergency.
See also:
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